MolluscaBase taxon details
original description
(of Segmentina (Polypylis) Pilsbry, 1906) Pilsbry, H. A. & Ferriss, J. H. (1906). Mollusca of the Southwestern States. II. <em>Proceedings of the Academy of natural Sciences of Philadelphia.</em> 58: 123-160 [20 June 1906], 161-175, pls 5-9 [24 July 1906]., available online at https://www.biodiversitylibrary.org/page/24706972
page(s): 166 [details]
basis of record
Bank, R. A. (2017). Classification of the Recent freshwater/brackish Gastropoda of the World. Last update: January 24th, 2018. OpenAccess publication. [details]